Pi4J V2.2.0 Released

One year after the first release of V.2 of Pi4J, a new release was published. Pi4J provides friendly object-oriented I/O API and implementation libraries for Java Programmers to access the full I/O capabilities of the Raspberry Pi platform.

And what an amazing achievement with this new release! No major issues were found in the previous release, but several small fixes were added by more people than ever before in the Pi4J-history. This is a real confirmation of the openness of this project and how a community can work together to further improve a project.

A big thank you to everyone who experimented with Pi4J, took part in the discussions, filed an issue, created a merge request, added examples,…!

New example implementations

Thanks to the work of FHNW University students and @taartspi, the list of available example implementations has become larger and larger.

We even moved them to their own section of this documentation website!

Take a look at Example implementations if you need a quick-start to use a buzzer, camera, LED strip, TCA9548, MCP4725,… or any of the other examples.

Changes in V2.2.0

Multiple improvements were added in this release (and others are already in progress for the next one!):

by @taartspi to improve SPI initialization, see #229
by @haumacher regarding the use of ByteBuffers, see #185
by @savageautomate regarding the polarity of digital output, see #93
by @gugrim to ensure positive values are returned from reading unless at end of file, see #164
by @eitch to also export LinuxFS I2C in module-info.java
by @eitch to also copy native libs to distribution zip
by @hagen to be able to configure sample rate and peripheral in PiGpio
by Saskia Bikle to add an implementation of deregistration/shutdown for IO’s
by @savageautomate to add a new value “flags” too SPI implementation

All the differences can be checked by comparing with the previous release 2.1.1 via this link.

The new version is available in the Maven repository and via https://pi4j.com/download/.

Earlier release notes

Release notes of the previous releases of Pi4J V.2 are available on github.com/Pi4J/pi4j-v2/releases.

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